Use the notifications bell

Open unread notifications from the bell, and use the notification center to filter, mark read or acknowledge them.

The bell sits in the top bar on every page. A red number on it shows how many notifications you have not read. It shows on phones too.

Steps

Select the bell. Your latest unread notifications appear.
Select a notification to go straight to the thing it is about.
To see everything, select Open notification center at the bottom.
In Notifications, filter the list with All, Unread, Mentions, Chat, Care or Work.
On any notification, select Open, Mark read or Mark unread.
Some notifications need you to confirm you have seen them. Select Acknowledge on those.
To clear the list, select Mark all read. Select Load more to see older notifications.

If a notification links to something you can no longer open, Oben tells you instead of opening the wrong page.
While the app is open, a short pop-up (and a chime, unless you turned Sound for new notifications off in My profile) tells you when something new arrives.
To choose which notifications reach this device, open My profile from your account menu. See Update your profile photo and notifications.